[THIN] Re: Ramifications of UDP in MFXP farm
- From: "Steve Greenberg" <steveg@xxxxxxxxxxxxxx>
- To: <thin@xxxxxxxxxxxxx>
- Date: Wed, 24 Mar 2004 20:26:03 -0700
Rob,
I have not had any experience this particular configuration and system =
size.
However, if you look at Citrix's recommendations and best practises they =
DO
NOT recommend using interop mode in production but they DO recommend
enabling UDP to support legacy ICA clients as needed....
Steve Greenberg
Thin Client Computing
34522 N. Scottsdale Rd. suite D8453
Scottsdale, AZ 85262
(602) 432-8649
(602) 296-0411 fax=20
steveg@xxxxxxxxxxxxxx
-----Original Message-----
From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On =
Behalf
Of Rob Slayden
Sent: Wednesday, March 24, 2004 7:48 PM
To: 'thin@xxxxxxxxxxxxx'
Subject: [THIN] Re: Ramifications of UDP in MFXP farm
Steve,
We have our Winterms auto-start and launch a published application, =
complete
with a scripted login. Users are then presented with the web-based
application (our pub app is currently Netscape 4.78 but is being =
"updated"
to support IE 6.01SP1), which prompts them for a login.
This works great in MF 1.8 using the MB and 2 BB IP addresses and TCP. =
My
concern is with the upgrade of the entire farm to MFXP. I have been =
testing
in the lab for 2 weeks and all seems okay to support the current =
terminal
configuration, although it requires the UDP Browse Listeners to function
correctly once the Interop mode is unchecked.
I was hoping someone was running an MFXP farm in the same manner and are
satisfied with the performance of session initiation and noting that the =
ZDC
in this mode (UDP Browse Listener) was able to adequately resolve all
requests for pub app routing. I am about to roll this out to the =
4000-user
production environment and I am a concerned about the effects of =
potentially
hundreds of users smackin' the ZDC in a short time period.
I'll post results as I deploy and hopefully it will be another Citrix =
MFXP
success story!
BTW, do you know Mike Rice, SE for Wyse out of Chandler? He is our SE =
and a
great resource!
Thanks!
Rob
24 Hour Fitness, Inc.
-----Original Message-----
From: Steve Greenberg [mailto:steveg@xxxxxxxxxxxxxx]=20
Sent: Wednesday, March 24, 2004 5:24 PM
To: thin@xxxxxxxxxxxxx
Subject: [THIN] Re: Ramifications of UDP in MFXP farm
Good point, I should have added that you need to "Respond to ICA client
broadcast". I don't know of any reason why this would not work perfectly
well in production....
BTW, are you launching individual published apps from the WYSE =3D =
terminals,
or, a desktop session?
Steve Greenberg
Thin Client Computing
34522 N. Scottsdale Rd. suite D8453
Scottsdale, AZ 85262
(602) 432-8649
(602) 296-0411 fax=3D20
steveg@xxxxxxxxxxxxxx
-----Original Message-----
From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On =
=3D
Behalf Of Shonk, Joe - Perot
Sent: Wednesday, March 24, 2004 2:14 PM
To: 'thin@xxxxxxxxxxxxx'
Subject: [THIN] Re: Ramifications of UDP in MFXP farm
You also have to set the Farm/Server to respond to ICA Client broadcast
messages. If you are running MF 1.8 on the same broadcast domain, the =
=3D
Farm setting will be disabled this settings and you wil have to resort =
to
Interoperability mode.
In addition you will want to enable the UPD Listener (assuming your =3D
running TCP/IP and not IPX, Netbios)
Joe
-----Original Message-----
From: Rob Slayden [mailto:rslayden@xxxxxxxxxxxxx]
Sent: Wednesday, March 24, 2004 12:12 PM
To: thin@xxxxxxxxxxxxx
Subject: [THIN] Re: Ramifications of UDP in MFXP farm
Steve,
We do have Wyse Management software, both Remote Administrator 3000 and
Rapport, but you cannot push configurations to terminals with Rapport =
=3D
unless they are on firmware version 369.20 or above and you cannot =
manage =3D
multiple subnets simultaneously with RA3K. At least half or more of our =
4000
terminals are 289.14 so they would have to have firmware upgrades to be
Rapport-manageable.
The terminals are currently configured for TCP and 3 IP addresses (MB =
=3D and
2 BBs), but unless the ZDC or the MF servers being "hit" by the terminal =
=3D
has UDP Browser Listener enabled, the MF server does not respond to =
directed
=3D TCP access by the terminals. At least, that is the behaviour I am
observing =3D in the lab in testing Interoperability mode and then =
converting
to "native" MFXP mode. If I access the ZDC from the termial in TCP mode =
and
it does =3D NOT have UDP Browser Listener enabled, it does not seem to
respond. If you =3D are saying it is supposed to respond to that, then =
maybe
there is some other configuration parameter that is not correctly
configured. I have Interoperability Off, UDP Browse Listener enabled =
ONLY on
the ZDCs, MFXP servers only (MF 1.8 servers are powered off). I tested =
from
multiple versions of firmware (i.e., mutiple client versions) and even =
in
ICA =3D 7.1, it did not find the pub apps in TCP mode without UDP =
enabled.
Am I doing something wrong here?
Thanks!
rob
-----Original Message-----
From: Steve Greenberg [mailto:steveg@xxxxxxxxxxxxxx]=3D20
Sent: Wednesday, March 24, 2004 10:50 AM
To: thin@xxxxxxxxxxxxx
Subject: [THIN] Re: Ramifications of UDP in MFXP farm
Do you have WYSE management software? Can you add an IP address or =3D3D =
=3D
Server name for polling the farm (i.e. in ICA syntax =
TCPBrowser=3D3D3DZDC)? I
=3D think =3D3D this will work without needing UDP available since it =
won't try
to broadcast, rather, it will ask the ZDC directly for it's list of =3D
published apps....
Steve Greenberg
Thin Client Computing
34522 N. Scottsdale Rd. suite D8453
Scottsdale, AZ 85262
(602) 432-8649
(602) 296-0411 fax=3D3D20
steveg@xxxxxxxxxxxxxx
-----Original Message-----
From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On =
=3D =3D3D
Behalf Of Rob Slayden
Sent: Wednesday, March 24, 2004 11:13 AM
To: thin@xxxxxxxxxxxxx
Subject: [THIN] Ramifications of UDP in MFXP farm
I am upgrading a 27-server NT 4.0-TSE/MF 1.8 farm to W2K3/MFXPe and I =
=3D =3D3D
have been testing the migration in the lab. It appears that I will still =
=3D3D
require the ZDCs (farm will have 2 zones) to maintain UDP (Server-->MF =
=3D XP
=3D3D Settings
-->ICA Browser - Create browser listener on UDP network). In =3D
testing,=3D3D20
-->when
in "native" mode (interoperability off), if this setting is unchecked, =
=3D =3D3D
my terminals doing directed TCP access for published applications fail =
to =3D
=3D3D find the master browser (ZDC). As long as the box is checked on =
the =3D
ZDCs, the terminals can not only get the list of pub apps, but they can
also =3D be routed to MF servers that are not configured as UDP browser
listeners.
As I do not want to change the configuration on 4000 Wyse terminals to
update the Server Location and Protocol from TCP to TCP+HTTP, =3D3D =3D
particularly since it would require firmware upgrades to half of them, =
what
are the ramifications to running my farm with the UDP browser listeners =
=3D3D
=3D configured on the ZDCs? How will this affect performance and session
initiation response time? I do not know how many users are
connecting/disconnecting =3D =3D3D at any given moment, but I know a =
typical
user load ranges anywhere from =3D =3D3D 2100 to 2800 users, though the
potential user base is closer to 4000.
Any thoughts or suggestions for ensuring optimal performance in my
environment would be greatly appreciated.
Thanks,
Rob
24 Hour Fitness
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firm in the nation. Emergent OnLine delivers expert=20
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